系统环境
JDK :1.8.0_66 x64
Karaf:apache-karaf-4.0.2
maven:Apache Maven 3.3.3
karaf中的feature通常是几个bundle的集合,安装这个feature的时候,相应的bundle也都会被安装上去,用来管理bundle很方便
下面来介绍如何自己开发一个feature
这里来制作一个名字为:apache-commons-utils的feature,里面包含如下bundle
<bundle>mvn:commons-io/commons-io/2.4</bundle> <bundle>mvn:commons-lang/commons-lang/2.6</bundle> <bundle>mvn:commons-discovery/commons-discovery/0.5</bundle> <bundle>mvn:commons-math/commons-math/1.2</bundle> <bundle>mvn:commons-net/commons-net/3.3</bundle>再加上2个配置文件 http.cfg、jdbc.cfg (配置文件只是为了演示如何在安装feature的时候,也同时把配置文件安装上)
新建一个maven项目,groupId:com.lala,artifactId:demo-features,version:1.0.0
1:resources目录下,新建http.cfg、jdbc.cfg两个配置文件,内容随便
2:resources目录下,新建features.xml文件,内容如下:
<?xml version="1.0" encoding="UTF-8"?> <features name="karaf-cellar-4.0.0" xmlns="http://karaf.apache.org/xmlns/features/v1.3.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://karaf.apache.org/xmlns/features/v1.3.0 http://karaf.apache.org/xmlns/features/v1.3.0"> <feature name="apache-commons-utils" description="apache commons utils" version="1.0.0"> <!-- 这个配置文件将会安装到etc/目录下 --> <configfile finalname="/etc/demo-features.jdbc.cfg">mvn:com.lala/demo-features/1.0.0/cfg/jdbc</configfile> <!-- 这个配置文件将会安装到deploy/目录下 --> <configfile finalname="/deploy/demo-features.http.cfg" override="true">mvn:com.lala/demo-features/1.0.0/cfg/http</configfile> <bundle>mvn:commons-io/commons-io/2.4</bundle> <bundle>mvn:commons-lang/commons-lang/2.6</bundle> <bundle>mvn:commons-discovery/commons-discovery/0.5</bundle> <bundle>mvn:commons-math/commons-math/1.2</bundle> <bundle>mvn:commons-net/commons-net/3.3</bundle> </feature> </features>
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <configuration> <useDefaultDelimiters>false</useDefaultDelimiters> <delimiters> <delimiter>${*}</delimiter> </delimiters> </configuration> <executions> <execution> <id>filter</id> <phase>generate-resources</phase> <goals> <goal>resources</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>build-helper-maven-plugin</artifactId> <version>1.9.1</version> <executions> <execution> <id>attach-artifact</id> <phase>package</phase> <goals> <goal>attach-artifact</goal> </goals> <configuration> <artifacts> <artifact> <file>target/classes/features.xml</file> <type>xml</type> <classifier>features</classifier> </artifact> <artifact> <file>target/classes/jdbc.cfg</file> <type>cfg</type> <classifier>jdbc</classifier> </artifact> <artifact> <file>target/classes/http.cfg</file> <type>cfg</type> <classifier>http</classifier> </artifact> </artifacts> </configuration> </execution> </executions> </plugin>
type为file的扩展名,classifier为file的文件名
配置好之后,执行mvn clean install ,mvn clean deploy
4:修改${karaf.home}/etc/org.apache.karaf.features.cfg文件
在featuresRepositories配置项后面加上:mvn:com.lala/demo-features/1.0.0/xml/features
5:修改${karaf.home}/etc/org.ops4j.pax.url.mvn.cfg文件,
在org.ops4j.pax.url.mvn.repositories配置项后面加上:http://192.168.1.100:8080/nexus/content/groups/public (maven私服的地址)
org.ops4j.pax.url.mvn.settings
org.ops4j.pax.url.mvn.localRepository
这2个配置项,如果你maven本地的仓库地址变了,就需要修改,否则,就不需要修改
5:修改好了之后,重启karaf,执行安装,即可看到效果
karaf@root()> feature:install apache-commons-utils karaf@root()> list START LEVEL 100 , List Threshold: 50 ID | State | Lvl | Version | Name -------------------------------------------------------- 52 | Active | 80 | 0.5 | Commons Discovery 53 | Active | 80 | 2.4.0 | Commons IO 54 | Active | 80 | 2.6 | Commons Lang 55 | Active | 80 | 1.2 | Apache Commons Math Bundle 56 | Active | 80 | 3.3.0 | Commons Net karaf@root()>